Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average sea temperature in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
In Lake Bluff, the average temperatures in July are the highest, with a peak at 77.7°F (25.4°C) and a low of 66.7°F (19.3°C).Humidity
In July, the average relative humidity in Lake Bluff is 78%.Rainfall
In July, the rain falls for 17.4 days. Throughout July, 3.23" (82mm) of precipitation is accumulated. In Lake Bluff, Illinois, during the entire year, the rain falls for 154.1 days and collects up to 30.24" (768mm) of precipitation.Snowfall
May through September are months without snowfall.Ocean temperature
In July, the average ocean temperature in Lake Bluff is 70.3°F (21.3°C).Note: Swimming in water that is 70.3°F (21.3°C) is not enjoyable for most. Breathing becomes more challenging to manage as the water temperature dips from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Lake Bluff, the average length of the day in July is 14h and 55min.On the first day of the month, sunrise is at 5:19 am and sunset at 8:31 pm. On the last day of July, sunrise is at 5:43 am and sunset at 8:11 pm CDT.
Sunshine
The average sunshine in July in Lake Bluff is 10.6h.UV index
The months with the highest UV index in Lake Bluff are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: In July, the UV index of 6 transforms into the following advice:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
Frequently asked questions
What are the warmest months in Lake Bluff?
What is the average July temperature in Lake Bluff?
What is the average humidity in July in Lake Bluff?
How many days does it rain in July in Lake Bluff?
When it does not snow in Lake Bluff?
How cold is the water in July in Lake Bluff?
What is the average length of the day in July in Lake Bluff?
When are sunrise and sunset in July in Lake Bluff?
How many hours of sunshine does Lake Bluff have in July?
What are the months with the highest UV index in Lake Bluff?
What is the UV index reading in July in Lake Bluff?
Average temperature in July
Lake Bluff, IL
- Average high temperature in July: 77.7°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in July: 66.7°F
The months with the highest average low temperature are July and August (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in July
Lake Bluff, IL
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in July
Lake Bluff, IL
- Average wind speed in July: 7.5mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).
Average humidity in July
Lake Bluff, IL
- Average humidity in July: 78%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in July
Lake Bluff, IL
- Average rainfall in July: 3.23"
The wettest months (with the highest rainfall) are May and June (3.82").
The driest month (with the least rainfall) is December (1.3").
Average rainfall days in July
Lake Bluff, IL
- Average rainfall days in July: 17.4 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in July
Lake Bluff, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (4.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Lake Bluff, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in July
Lake Bluff, IL
- Average sea temperature in July: 70.2°F
The best month for swimming (with the highest average sea temperature) is August (73.3°F).
The coldest month (with the lowest average sea temperature) is February (37.1°F).
Average daylight in July /
Average sunshine in July
Lake Bluff, IL
- Average daylight in July: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in July: 10h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in July
Lake Bluff, IL
- Average sunshine days in July: 11.5 days
The month with the most sunshine days is December (15.3 days).
The month with the least sunshine days is April (10.8 days).
Average UV index in July
Lake Bluff, IL
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in July
Lake Bluff, IL
- Average cloud cover in July: 27
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in July
Lake Bluff, IL
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Lake Bluff, Illinois, USA
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